338045140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{189913}}^1$

素因数の和:190011

約数の個数: 24

約数和(自身を含む): 717874920

約数和(自身を除く): 379829780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 189913, 379826, 759652, 949565, 1899130, 3798260, 16902257, 33804514, 67609028, 84511285, 169022570, 338045140]

約数ペア:

[(1, 338045140), (2, 169022570), (4, 84511285), (5, 67609028), (10, 33804514), (20, 16902257), (89, 3798260), (178, 1899130), (356, 949565), (445, 759652), (890, 379826), (1780, 189913)]